BIORETROSCOPE Russian patent published in 2008 - IPC A61B1/31 

FIELD: medical equipment.

SUBSTANCE: device includes tube valid for one occasion only with face on distal end and obturator made from biodegradable material of organic or inorganic origin. On distal end of obturator, flush with external surface, tip is fixed, which is made in the form of cone-cylinder bush. Top of cone part of bush is made rounded. Cylinder part is made with internal hole and installed in internal cavity of obturator. On proximal end of obturator from the side of end face, to ensure support, either stop is fixed, or proximal end of obturator is made flat in the form of trapezoid with lower base greater in size than internal tube diameter. Coating in the form of a thin layer of smooth material is applied on external surface of distal end of tube, cone part of tip and face of tube distal end, stop is made in the form of either a cylinder ring or a pin.

EFFECT: application of said bioretroscope allows to creating painless examination conditions.

9 cl, 2 dwg